]> The Tcpdump Group git mirrors - tcpdump/blob - CHANGES
Making "extracted_ethertype" static to "print-ether.c" broke other
[tcpdump] / CHANGES
1 Sun Dec 17 07:14:08 PST 2000 fenner@research.att.com
2 * Updated config.guess and config.sub from
3 ftp://ftp.gnu.org/gnu/config/
4
5 Fri Aug 18 16:43:03 JST 2000 itjun@iijlab.net
6 * improved PPP/L2TP/PPPoE decoder.
7 From: Motonori Shindo <mshindo@mshindo.net>
8
9 Wed Aug 2 05:28:45 JST 2000 itojun@iijlab.net
10 * tcp/udp pseudo header checksum code, from netbsd-current.
11
12 Tue Jul 11 01:14:41 GMT 2000 Assar Westerlund <assar@sics.se>
13 * (ip6_print): rewrite the alignment code to be for v6 and not v4.
14 based on a patch from Love <lha@stacken.kth.se>
15
16 Tue Jul 11 01:22:38 GMT 2000 Love <lha@stacken.kth.se>
17 * check the ip protocol version on printing raw packets
18
19 2000-05-15 Assar Westerlund <assar@sics.se>
20
21 * print cdp packets, code contributed by Gert Doering
22 <gert@greenie.muc.de>
23
24 2000-04-09 Assar Westerlund <assar@sics.se>
25
26 * make it work on Solaris 8, including ipv6
27
28 Wed Jan 19 JST 2000 itojun@iijlab.net
29 * fix get{addr,name}info portability issues.
30 * improve linux portability for IPv6 enabled case. pull in structure
31 defs from KAME include files into tcpdump tree itself.
32 * fix pim structure def.
33 * string buffer overrun prevention, using snprintf(), strlcpy and
34 others (not complete).
35
36 2000-01-09 Assar Westerlund <assar@sics.se>
37
38 * remove some <netinet/tcpip.h>, it's not needed and causes
39 problems when compiling with v6 support if v6 headers have not been
40 included before
41
42 2000-01-07 Assar Westerlund <assar@sics.se>
43
44 * check for sys/cdefs.h
45
46 * missing/snprintf.c: snprintf implementation
47 * interface.h: add prototypes for snprintf et al
48 * Makefile.in: add snprintf.c
49 * configure.in: check for vsnprintf snprintf asprintf asnprintf
50 vasprintf vasnprintf
51
52 * print-rx.c: add printing of fs error messages
53
54 Wed Dec 22 13:06:17 JST 1999 itojun@iijlab.net
55 * print-rt6.c: make IPv6 routing header printing work with new 2292bis
56 API.
57
58 v3.5 Fri Jan 28 18:00:00 PST 2000
59
60 Bill Fenner <fenner@research.att.com>
61 - switch to config.h for autoconf
62 - unify RCSID strings
63 - Updated PIMv1, PIMv2, DVMRP, IGMP parsers, add Cisco Auto-RP parser
64 - Really fix the RIP printer
65 - Fix MAC address -> name translation.
66 - some -Wall -Wformat fixes
67 - update makemib to parse much of SMIv2
68 - Print TCP sequence # with -vv even if you normally wouldn't
69 - Print as much of IP/TCP/UDP headers as possible even if truncated.
70
71 itojun@iijlab.net
72 - -X will make a ascii dump. from netbsd.
73 - telnet command sequence decoder (ff xx xx). from netbsd.
74 - print-bgp.c: improve options printing. ugly code exists for
75 unaligned option parsing (need some fix).
76 - const poisoning in SMB decoder.
77 - -Wall -Werror clean checks.
78 - bring in KAME IPv6/IPsec decoding code.
79
80 Assar Westerlund <assar@sics.se>
81 - SNMPv2 and SNMPv3 printer
82 - If compiled with libsmi, tcpdump can load MIBs on the fly to decode
83 SNMP packets.
84 - Incorporate NFS parsing code from NetBSD. Adds support for nfsv3.
85 - portability fixes
86 - permit building in different directories.
87
88 Ken Hornstein <kenh@cmf.nrl.navy.mil>
89 - bring in code at
90 /afs/transarc.com/public/afs-contrib/tools/tcpdump for parsing
91 AFS3 packets
92
93 Andrew Tridgell <tridge@linuxcare.com>
94 - SMB printing code
95
96 Love <lha@stacken.kth.se>
97 - print-rx.c: add code for printing MakeDir and StoreStatus. Also
98 change date format to the right one.
99
100 Michael C. Richardson <mcr@sandelman.ottawa.on.ca>
101 - Created tcpdump.org repository
102
103 v3.4 Sat Jul 25 12:40:55 PDT 1998
104
105 - Hardwire Linux slip support since it's too hard to detect.
106
107 - Redo configuration of "network" libraries (-lsocket and -lnsl) to
108 deal with IRIX. Thanks to John Hawkinson (jhawk@mit.edu)
109
110 - Added -a which tries to translate network and broadcast addresses to
111 names. Suggested by Rob van Nieuwkerk (robn@verdi.et.tudelft.nl)
112
113 - Added a configure option to disable gcc.
114
115 - Added a "raw" packet printer.
116
117 - Not having an interface address is no longer fatal. Requested by John
118 Hawkinson.
119
120 - Rework signal setup to accommodate Linux.
121
122 - OSPF truncation check fix. Also display the type of OSPF packets
123 using MD5 authentication. Thanks to Brian Wellington
124 (bwelling@tis.com)
125
126 - Fix truncation check bugs in the Kerberos printer. Reported by Ezra
127 Peisach (epeisach@mit.edu)
128
129 - Don't catch SIGHUP when invoked with nohup(1). Thanks to Dave Plonka
130 (plonka@mfa.com)
131
132 - Specify full install target as a way of detecting if install
133 directory does not exist. Thanks to Dave Plonka.
134
135 - Bit-swap FDDI addresses for BSD/OS too. Thanks to Paul Vixie
136 (paul@vix.com)
137
138 - Fix off-by-one bug when testing size of ethernet packets. Thanks to
139 Marty Leisner (leisner@sdsp.mc.xerox.com)
140
141 - Add a local autoconf macro to check for routines in libraries; the
142 autoconf version is broken (it only puts the library name in the
143 cache variable name). Thanks to John Hawkinson.
144
145 - Add a local autoconf macro to check for types; the autoconf version
146 is broken (it uses grep instead of actually compiling a code fragment).
147
148 - Modified to support the new BSD/OS 2.1 PPP and SLIP link layer header
149 formats.
150
151 - Extend OSF ip header workaround to versions 1 and 2.
152
153 - Fix some signed problems in the nfs printer. As reported by David
154 Sacerdote (davids@silence.secnet.com)
155
156 - Detect group wheel and use it as the default since BSD/OS' install
157 can't hack numeric groups. Reported by David Sacerdote.
158
159 - AIX needs special loader options. Thanks to Jonathan I. Kamens
160 (jik@cam.ov.com)
161
162 - Fixed the nfs printer to print port numbers in decimal. Thanks to
163 Kent Vander Velden (graphix@iastate.edu)
164
165 - Find installed libpcap in /usr/local/lib when not using gcc.
166
167 - Disallow network masks with non-network bits set.
168
169 - Attempt to detect "egcs" versions of gcc.
170
171 - Add missing closing double quotes when displaying bootp strings.
172 Reported by Viet-Trung Luu (vluu@picard.math.uwaterloo.ca)
173
174 v3.3 Sat Nov 30 20:56:27 PST 1996
175
176 - Added Linux support.
177
178 - GRE encapsulated packet printer thanks to John Hawkinson
179 (jhawk@mit.edu)
180
181 - Rewrite gmt2local() to avoid problematic os dependencies.
182
183 - Suppress nfs truncation message on errors.
184
185 - Add missing m4 quoting in AC_LBL_UNALIGNED_ACCESS autoconf macro.
186 Reported by Joachim Ott (ott@ardala.han.de)
187
188 - Enable "ip_hl vs. ip_vhl" workaround for OSF4 too.
189
190 - Print arp hardware type in host order. Thanks to Onno van der Linden
191 (onno@simplex.nl)
192
193 - Avoid solaris compiler warnings. Thanks to Bruce Barnett
194 (barnett@grymoire.crd.ge.com)
195
196 - Fix rip printer to not print one more route than is actually in the
197 packet. Thanks to Jean-Luc Richier (Jean-Luc.Richier@imag.fr) and
198 Bill Fenner (fenner@parc.xerox.com)
199
200 - Use autoconf endian detection since BYTE_ORDER isn't defined on all systems.
201
202 - Fix dvmrp printer truncation checks and add a dvmrp probe printer.
203 Thanks to Danny J. Mitzel (mitzel@ipsilon.com)
204
205 - Rewrite ospf printer to improve truncation checks.
206
207 - Don't parse tcp options past the EOL. As noted by David Sacerdote
208 (davids@secnet.com). Also, check tcp options to make sure they ar
209 actually in the tcp header (in addition to the normal truncation
210 checks). Fix the SACK code to print the N blocks (instead of the
211 first block N times).
212
213 - Don't say really small UDP packets are truncated just because they
214 aren't big enough to be a RPC. As noted by David Sacerdote.
215
216 v3.2.1 Sun Jul 14 03:02:26 PDT 1996
217
218 - Added rfc1716 icmp codes as suggested by Martin Fredriksson
219 (martin@msp.se)
220
221 - Print mtu for icmp unreach need frag packets. Thanks to John
222 Hawkinson (jhawk@mit.edu)
223
224 - Decode icmp router discovery messages. Thanks to Jeffrey Honig
225 (jch@bsdi.com)
226
227 - Added a printer entry for DLT_IEEE802 as suggested by Tak Kushida
228 (kushida@trl.ibm.co.jp)
229
230 - Check igmp checksum if possible. Thanks to John Hawkinson.
231
232 - Made changes for SINIX. Thanks to Andrej Borsenkow
233 (borsenkow.msk@sni.de)
234
235 - Use autoconf's idea of the top level directory in install targets.
236 Thanks to John Hawkinson.
237
238 - Avoid infinite loop in tcp options printing code. Thanks to Jeffrey
239 Mogul (mogul@pa.dec.com)
240
241 - Avoid using -lsocket in IRIX 5.2 and earlier since it breaks snoop.
242 Thanks to John Hawkinson.
243
244 - Added some more packet truncation checks.
245
246 - On systems that have it, use sigset() instead of signal() since
247 signal() has different semantics on these systems.
248
249 - Fixed some more alignment problems on the alpha.
250
251 - Add code to massage unprintable characters in the domain and ipx
252 printers. Thanks to John Hawkinson.
253
254 - Added explicit netmask support. Thanks to Steve Nuchia
255 (steve@research.oknet.com)
256
257 - Add "sca" keyword (for DEC cluster services) as suggested by Terry
258 Kennedy (terry@spcvxa.spc.edu)
259
260 - Add "atalk" keyword as suggested by John Hawkinson.
261
262 - Added an igrp printer. Thanks to Francis Dupont
263 (francis.dupont@inria.fr)
264
265 - Print IPX net numbers in hex a la Novell Netware. Thanks to Terry
266 Kennedy (terry@spcvxa.spc.edu)
267
268 - Fixed snmp extended tag field parsing bug. Thanks to Pascal Hennequin
269 (pascal.hennequin@hugo.int-evry.fr)
270
271 - Added some ETHERTYPEs missing on some systems.
272
273 - Added truncated packet macros and various checks.
274
275 - Fixed endian problems with the DECnet printer.
276
277 - Use $CC when checking gcc version. Thanks to Carl Lindberg
278 (carl_lindberg@blacksmith.com)
279
280 - Fixes for AIX (although this system is not yet supported). Thanks to
281 John Hawkinson.
282
283 - Fix bugs in the autoconf misaligned accesses code fragment.
284
285 - Include sys/param.h to get BYTE_ORDER in a few places. Thanks to
286 Pavlin Ivanov Radoslavov (pavlin@cs.titech.ac.jp)
287
288 v3.2 Sun Jun 23 02:28:10 PDT 1996
289
290 - Print new icmp unreachable codes as suggested by Martin Fredriksson
291 (martin@msp.se). Also print code value when unknown for icmp redirect
292 and time exceeded.
293
294 - Fix an alignment endian bug in getname(). Thanks to John Hawkinson.
295
296 - Define "new" domain record types if not found in arpa/nameserv.h.
297 Resulted from a suggestion from John Hawkinson (jhawk@mit.edu). Also
298 fixed an endian bug when printing mx record and added some new record
299 types.
300
301 - Added RIP V2 support. Thanks to Jeffrey Honig (jch@bsdi.com)
302
303 - Added T/TCP options printing. As suggested by Richard Stevens
304 (rstevens@noao.edu)
305
306 - Use autoconf to detect architectures that can't handle misaligned
307 accesses.
308
309 v3.1 Thu Jun 13 20:59:32 PDT 1996
310
311 - Changed u_int32/int32 to u_int32_t/int32_t to be consistent with bsd
312 and bind (as suggested by Charles Hannum).
313
314 - Port to GNU autoconf.
315
316 - Add support for printing DVMRP and PIM traffic thanks to
317 Havard Eidnes (Havard.Eidnes@runit.sintef.no).
318
319 - Fix AppleTalk, IPX and DECnet byte order problems due to wrong endian
320 define being referenced. Reported by Terry Kennedy.
321
322 - Minor fixes to the man page thanks to Mark Andrews.
323
324 - Endian fixes to RTP and vat packet dumpers, thanks to Bruce Mah
325 (bmah@cs.berkeley.edu).
326
327 - Added support for new dns types, thanks to Rainer Orth.
328
329 - Fixed tftp_print() to print the block number for ACKs.
330
331 - Document -dd and -ddd. Resulted from a bug report from Charlie Slater
332 (cslater@imatek.com).
333
334 - Check return status from malloc/calloc/etc.
335
336 - Check return status from pcap_loop() so we can print an error and
337 exit with a bad status if there were problems.
338
339 - Bail if ip option length is <= 0. Resulted from a bug report from
340 Darren Reed (darrenr@vitruvius.arbld.unimelb.edu.au).
341
342 - Print out a little more information for sun rpc packets.
343
344 - Add suport for Kerberos 4 thanks to John Hawkinson (jhawk@mit.edu).
345
346 - Fixed the Fix EXTRACT_SHORT() and EXTRACT_LONG() macros (which were
347 wrong on little endian machines).
348
349 - Fixed alignment bug in ipx_decode(). Thanks to Matt Crawford
350 (crawdad@fnal.gov).
351
352 - Fix ntp_print() to not print garbage when the stratum is
353 "unspecified." Thanks to Deus Ex Machina (root@belle.bork.com).
354
355 - Rewrote tcp options printer code to check for truncation. Added
356 selective acknowledgment case.
357
358 - Fixed an endian bug in the ospf printer. Thanks to Jeffrey C Honig
359 (jch@bsdi.com)
360
361 - Fix rip printer to handle 4.4 BSD sockaddr struct which only uses one
362 octet for the sa_family member. Thanks to Yoshitaka Tokugawa
363 (toku@dit.co.jp)
364
365 - Don't checksum ip header if we don't have all of it. Thanks to John
366 Hawkinson (jhawk@mit.edu).
367
368 - Print out hostnames if possible in egp printer. Thanks to Jeffrey
369 Honig (jhc@bsdi.com)
370
371
372 v3.1a1 Wed May 3 19:21:11 PDT 1995
373
374 - Include time.h when SVR4 is defined to avoid problems under Solaris
375 2.3.
376
377 - Fix etheraddr_string() in the ETHER_SERVICE to return the saved
378 strings, not the local buffer. Thanks to Stefan Petri
379 (petri@ibr.cs.tu-bs.de).
380
381 - Detect when pcap raises the snaplen (e.g. with snit). Print a warning
382 that the selected value was not used. Thanks to Pascal Hennequin
383 (Pascal.Hennequin@hugo.int-evry.fr).
384
385 - Add a truncated packet test to print-nfs.c. Thanks to Pascal Hennequin.
386
387 - BYTEORDER -> BYTE_ORDER Thanks to Terry Kennedy (terry@spcvxa.spc.edu).
388
389 v3.0.3 Sun Oct 1 18:35:00 GMT 1995
390
391 - Although there never was a 3.0.3 release, the linux boys cleverly
392 "released" one in late 1995.
393
394 v3.0.2 Thu Apr 20 21:28:16 PDT 1995
395
396 - Change configuration to not use gcc v2 flags with gcc v1.
397
398 - Redo gmt2local() so that it works under BSDI (which seems to return
399 an empty timezone struct from gettimeofday()). Based on report from
400 Terry Kennedy (terry@spcvxa.spc.edu).
401
402 - Change configure to recognize IP[0-9]* as "mips" SGI hardware. Based
403 on report from Mark Andrews (mandrews@alias.com).
404
405 - Don't pass cc flags to gcc. Resulted from a bug report from Rainer
406 Orth (ro@techfak.uni-bielefeld.de).
407
408 - Fixed printout of connection id for uncompressed tcp slip packets.
409 Resulted from a bug report from Richard Stevens (rstevens@noao.edu).
410
411 - Hack around deficiency in Ultrix's make.
412
413 - Add ETHERTYPE_TRAIL define which is missing from irix5.
414
415 v3.0.1 Wed Aug 31 22:42:26 PDT 1994
416
417 - Fix problems with gcc2 vs. malloc() and read() prototypes under SunOS 4.
418
419 v3.0 Mon Jun 20 19:23:27 PDT 1994
420
421 - Added support for printing tcp option timestamps thanks to
422 Mark Andrews (mandrews@alias.com).
423
424 - Reorganize protocol dumpers to take const pointers to packets so they
425 never change the contents (i.e., they used to do endian conversions
426 in place). Previously, whenever more than one pass was taken over
427 the packet, the packet contents would be dumped incorrectly (i.e.,
428 the output form -x would be wrong on little endian machines because
429 the protocol dumpers would modify the data). Thanks to Charles Hannum
430 (mycroft@gnu.ai.mit.edu) for reporting this problem.
431
432 - Added support for decnet protocol dumping thanks to Jeff Mogul
433 (mogul@pa.dec.com).
434
435 - Fix bug that caused length of packet to be incorrectly printed
436 (off by ether header size) for unknown ethernet types thanks
437 to Greg Miller (gmiller@kayak.mitre.org).
438
439 - Added support for IPX protocol dumping thanks to Brad Parker
440 (brad@fcr.com).
441
442 - Added check to verify IP header checksum under -v thanks to
443 Brad Parker (brad@fcr.com).
444
445 - Move packet capture code to new libpcap library (which is
446 packaged separately).
447
448 - Prototype everything and assume an ansi compiler.
449
450 - print-arp.c: Print hardware ethernet addresses if they're not
451 what we expect.
452
453 - print-bootp.c: Decode the cmu vendor field. Add RFC1497 tags.
454 Many helpful suggestions from Gordon Ross (gwr@jericho.mc.com).
455
456 - print-fddi.c: Improvements. Thanks to Jeffrey Mogul
457 (mogul@pa.dec.com).
458
459 - print-icmp.c: Byte swap netmask before printing. Thanks to
460 Richard Stevens (rstevens@noao.edu). Print icmp type when unknown.
461
462 - print-ip.c: Print the inner ip datagram of ip-in-ip encapsulated packets.
463 By default, only the inner packet is dumped, appended with the token
464 "(encap)". Under -v, both the inner and output packets are dumped
465 (on the same line). Note that the filter applies to the original packet,
466 not the encapsulated packet. So if you run tcpdump on a net with an
467 IP Multicast tunnel, you cannot filter out the datagrams using the
468 conventional syntax. (You can filter away all the ip-in-ip traffic
469 with "not ip proto 4".)
470
471 - print-nfs.c: Keep pending rpc's in circular table. Add generic
472 nfs header and remove os dependences. Thanks to Jeffrey Mogul.
473
474 - print-ospf.c: Improvements. Thanks to Jeffrey Mogul.
475
476 - tcpdump.c: Add -T flag allows interpretation of "vat", "wb", "rpc"
477 (sunrpc) and rtp packets. Added "inbound" and "outbound" keywords
478 Add && and || operators
479
480 v2.2.1 Tue Jun 6 17:57:22 PDT 1992
481
482 - Fix bug with -c flag.
483
484 v2.2 Fri May 22 17:19:41 PDT 1992
485
486 - savefile.c: Remove hack that shouldn't have been exported. Add
487 truncate checks.
488
489 - Added the 'icmp' keyword. For example, 'icmp[0] != 8 and icmp[0] != 0'
490 matches non-echo/reply ICMP packets.
491
492 - Many improvements to filter code optimizer.
493
494 - Added 'multicast' keyword and extended the 'broadcast' keyword can now be
495 so that protocol qualifications are allowed. For example, "ip broadcast"
496 and "ether multicast" are valid filters.
497
498 - Added support for monitoring the loopback interface (i.e. 'tcpdump -i lo').
499 Jeffrey Honig (jch@MITCHELL.CIT.CORNELL.EDU) contributed the kernel
500 patches to netinet/if_loop.c.
501
502 - Added support for the Ungermann-Bass Ethernet on IBM/PC-RTs running AOS.
503 Contact Jeffrey Honig (jch@MITCHELL.CIT.CORNELL.EDU) for the diffs.
504
505 - Added EGP and OSPF printers, thanks to Jeffrey Honig.
506
507 v2.1 Tue Jan 28 11:00:14 PST 1992
508
509 - Internal release (never publically exported).
510
511 v2.0.1 Sun Jan 26 21:10:10 PDT
512
513 - Various byte ordering fixes.
514
515 - Add truncation checks.
516
517 - inet.c: Support BSD style SIOCGIFCONF.
518
519 - nametoaddr.c: Handle multi addresses for single host.
520
521 - optimize.c: Rewritten.
522
523 - pcap-bpf.c: don't choke when we get ptraced. only set promiscuous
524 for broadcast nets.
525
526 - print-atal.c: Fix an alignment bug (thanks to
527 stanonik@nprdc.navy.mil) Add missing printf() argument.
528
529 - print-bootp.c: First attempt at decoding the vendor buffer.
530
531 - print-domain.c: Fix truncation checks.
532
533 - print-icmp.c: Calculate length of packets from the ip header.
534
535 - print-ip.c: Print frag id in decimal (so it's easier to match up
536 with non-frags). Add support for ospf, egp and igmp.
537
538 - print-nfs.c: Lots of changes.
539
540 - print-ntp.c: Make some verbose output depend on -v.
541
542 - print-snmp.c: New version from John LoVerso.
543
544 - print-tcp.c: Print rfc1072 tcp options.
545
546 - tcpdump.c: Print "0x" prefix for %x formats. Always print 6 digits
547 (microseconds) worth of precision. Fix uid bugs.
548
549 - A packet dumper has been added (thanks to Jeff Mogul of DECWRL).
550 With this option, you can create an architecture independent binary
551 trace file in real time, without the overhead of the packet printer.
552 At a later time, the packets can be filtered (again) and printed.
553
554 - BSD is supported. You must have BPF in your kernel.
555 Since the filtering is now done in the kernel, fewer packets are
556 dropped. In fact, with BPF and the packet dumper option, a measly
557 Sun 3/50 can keep up with a busy network.
558
559 - Compressed SLIP packets can now be dumped, provided you use our
560 SLIP software and BPF. These packets are dumped as any other IP
561 packet; the compressed headers are dumped with the '-e' option.
562
563 - Machines with little-endian byte ordering are supported (thanks to
564 Jeff Mogul).
565
566 - Ultrix 4.0 is supported (also thanks to Jeff Mogul).
567
568 - IBM RT and Stanford Enetfilter support has been added by
569 Rayan Zachariassen <rayan@canet.ca>. Tcpdump has been tested under
570 both the vanilla Enetfilter interface, and the extended interface
571 (#ifdef'd by IBMRTPC) present in the MERIT version of the Enetfilter.
572
573 - TFTP packets are now printed (requests only).
574
575 - BOOTP packets are now printed.
576
577 - SNMP packets are now printed. (thanks to John LoVerso of Xylogics).
578
579 - Sparc architectures, including the Sparcstation-1, are now
580 supported thanks to Steve McCanne and Craig Leres.
581
582 - SunOS 4 is now supported thanks to Micky Liu of Columbia
583 University (micky@cunixc.cc.columbia.edu).
584
585 - IP options are now printed.
586
587 - RIP packets are now printed.
588
589 - There's a -v flag that prints out more information than the
590 default (e.g., it will enable printing of IP ttl, tos and id)
591 and -q flag that prints out less (e.g., it will disable
592 interpretation of AppleTalk-in-UDP).
593
594 - The grammar has undergone substantial changes (if you have an
595 earlier version of tcpdump, you should re-read the manual
596 entry).
597
598 The most useful change is the addition of an expression
599 syntax that lets you filter on arbitrary fields or values in the
600 packet. E.g., "ip[0] > 0x45" would print only packets with IP
601 options, "tcp[13] & 3 != 0" would print only TCP SYN and FIN
602 packets.
603
604 The most painful change is that concatenation no longer means
605 "and" -- e.g., you have to say "host foo and port bar" instead
606 of "host foo port bar". The up side to this down is that
607 repeated qualifiers can be omitted, making most filter
608 expressions shorter. E.g., you can now say "ip host foo and
609 (bar or baz)" to look at ip traffic between hosts foo and bar or
610 between hosts foo and baz. [The old way of saying this was "ip
611 host foo and (ip host bar or ip host baz)".]
612
613 v2.0 Sun Jan 13 12:20:40 PST 1991
614
615 - Initial public release.
616
617 @(#) $Header: /tcpdump/master/tcpdump/CHANGES,v 1.76 2000-12-17 19:37:57 guy Exp $ (LBL)